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Minerva Urologica e Nefrologica 2018 February;70(1):74-8

DOI: 10.23736/S0393-2249.17.02867-3

Copyright © 2017 EDIZIONI MINERVA MEDICA

lingua: Inglese

Optional caval filter in kidney cancer patients with tumor thrombus level I and II

Marco GRASSO 1 , Salvatore BLANCO 1, Vittorio SEGRAMORA 2, Emanuele C. GRASSO 2, Davide LENI 3, Grazia M. CONTI 1

1 Department of Urology, San Gerardo Hospital, Monza, Italy; 2 Department of Vascular Surgery, San Gerardo Hospital, Monza, Italy; 3 Department of Radiology, San Gerardo Hospital, Monza, Italy


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BACKGROUND: Kidney diseases requiring a radical surgical approach can come up complicated by the presence of a thrombus of the renal vein or the inferior vena cava (IVC). The overwhelming majority of these cases concern the presence of a kidney tumor, especially renal cell carcinoma (RCC). Kidney tumor presenting with thrombus extension into the IVC represents a difficult operative challenge, especially for the risk of thrombus dislocation due to the manipulation of the IVC during tumor isolation, which may result in pulmonary embolism (PE).
METHODS: We propose a retrospective cohort study regarding 10 patients (thrombus level I or II) operated in our center from 2010 to 2015. All of them had a renal tumor. In 8 patients TC proved tumor thrombus extended into the IVC<2 cm above the renal vein (level I), in the remaining patients the thrombus entered the IVC>2 cm above the renal vein but below the hepatic veins (level 2). All the patients underwent an IVC temporary/optional filter placement as a preoperative maneuver before radical nephrectomy.
RESULTS: The efficacy of the procedure is confirmed by the absence of any inter- or postsurgical thromboembolic event in all patients; filter was removed in 3 patients, moreover, concerning the long-term information we obtained about the patients, none of them has showed complete occlusion of IVC.
CONCLUSIONS: The results of the study support effectiveness of preoperative temporary IVC placement to prevent thrombosis embolism shedding and to improve surgical safety.


KEY WORDS: Kidney neoplasms - Thrombosis - Vena cava filters

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